SD-46
The Tektronix SD-46 is an optical / electrical converter head for 11800-series mainframes.
![](http://w140.com/tekwiki/images/d/d7/Tek-sd46.jpg)
Signal input is through an FC/PC fiberoptic connector, electrical output through a 3.5 mm connector for connecting to the input of an SD-24 or SD-26 sampling head installed in the slot immediately to the left of the SD-46, using a semi-rigid link cable originally included with the converter.
The SD-46 includes an average optical power monitor function with DC output provided through a pair of 2 mm jacks. The monitor has two ranges, 1 V/mW and 1 V/mW (calibrated at 1300 nm for single-mode fibers) enabling mean optical input powers from 5 nW to 5 mW to be measured.
Key Specifications
Bandwidth | 20 GHz |
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Rise time | 28.5 ps |
Optical wavelength | 1200-1650 nm (calibrated at 1300±20 nm) |